Curtain stretcher



Dec. 29, 1942. R. A. LODGE v 2,306,483

CURTAIN STRETCHER Filed April 24,";1942 2 Sheets-Sheet 2 v v 1 J j? /0 ol Q 7 l0 2 Q Q l Patented Dec. 29, 1942 UNITED STATES PATENT OFFICECURTAIN STRETCHER Raymond A. Lodge, Ileetonia, Ohio Application April24, 1942, Serial No. 440,377

2 Claims.

simple in construction, strong, durable, highly V eflicient and reliablein use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein:

Figure 1 is a top plan view of a curtain stretcher constructed inaccordance with the present invention.

Figure 2 is a bottom plan view thereof.

Figure 3 is a vertical sectional view, taken substantially on the line33 of Figure 1.

Figure 4 is a detail view in perspective of one of the clamp blocks.

Referring now to the drawings in detail, it will be seen that theembodiment of the invention which has been illustrated comprises a framewhich is designated generally by reference numeral l. The frame Iincludes a plurality of graduated pin rails 2.

Secured beneath one end portion of each of the rails 2 and extendingtransversely beneath the adjacent rail is a plate 3. Elongated, blocks 4are mounted transversely on the outer end portions of the plates 3, saidblocks including beveled or inclined inner marginal portions 5. Alsomounted on these end portions of the rails 2 and projecting therefromareguide plates 6 for the adjacent rails.

The outer marginal portions of the rails 2 are oppositely beveled to theportions 5 of the blocks 4, as at 1. Thus, substantially V-shapedgrooves or channels are provided for the reception of V-shaped lockingwedges 8 of suitable metal. Bolts 9 secure the locking wedges 8 inposition, said bolts passing downwardly between the It is thought thatthe manner in which the invention functions will be readily apparentfrom a consideration of the foregoing. Briefly, with the locking wedges8 loosened, the rails 2 are free to be adjusted relative to each otherfor increasing or decreasing the side of the frame I as desired. Whenthis is done, the rails 2 slide transversely across the plates 3 betweenthe blocks 4 and the opposed ends of the adjacent rails. When thedesired adjustment has been made, the wing nuts Ill are tightened fordrawing the locking wedges 8 downwardly through the medium of the bolts9 for frictionally clamp ing the rails 2 in adjusted position relativeto each other. The construction and arrangement is such that the frame Imay be expeditiously assembled and disassembled.

It is believed that the many advantages of a curtain stretcherconstructed in accordance with the present invention will be readilyunderstood, and although a preferred embodiment of the device is asillustrated and described, it is to be understood that changes in thedetails of construction and in the combination and arrangement of partsmaybe resorted to which will fall within the scope of the invention asclaimed.

What is claimed is:

1. A curtain stretcher comprising a frame including a plurality f railsextending at right angles to each other, plates mounted beneath one endportion of the rails and extending trans- V versely beneath the adjacentrails, blocks mounted on said plates, the adjacent portions of theblocks and the rails being oppositely beveled,

to each other, a platemounted on one end of one of said rails andprojecting longitudinally blocks 4 and the adjacent rails 2 and passingthrough openings in the plates 3. Wing nuts III are provided on thelower end portions of the bolts 9.

therefrom, said plate extending transversely beneath the other rail, ablock on the plate outwardly of said other rail, a guide on said one endof said one rail extending over said other rail, a substantiallyV-shaped wedge engaged between the block and said other rail, and meansfor drawing said wedge between the block and said other rail forfrictionally securing the rails together, the adjacent portions oftheblock and said other rail being oppositely beveled'for the receptionof the wedge.

RAYMOND AQLODGE.

